I don't understand the circled one

Oprah Winfrey has closed on a 42-acre estate near Santa Barbara, California, for $50, 000.000. If Oprah 20% down and finances at 7% for 30 years, what would her monthly payment be? LU 18-1(2) Joe Levi bought a home in Arlington, Texas, for $14, 000. He put down 20% and obtained a mortgage for 30 years at 5 1/2 %. What is Joe's monthly payment? What is the total interest cost of the loan? LU 18-1(2, 3) If in Problem 18-11 the rate of interest is 7 1/2 %, what is the difference in interest cost? LU 18-1(3) Mike Jones bought a new split-level home for $150, 000 with 20% down. He decided to use Victory Bank for this mo0rgage. Victory was offering 13 3/4 % for 25-year mortgages. Provide Mike with an amortization schedule for the first three periods. LU 18-2(1, 2)